Screen Size 49" Panel Technology IPS Back Light Type Direct Aspect Ratio 16 : 9 Native Resolution 3,840 x 2,160 (4K UHD) Refresh Rate 60 Hz Brightness (Typ.) 500 nit Contrast Ratio 1,100 : 1 Dynamic CR 1,000,000 : 1 Color gamut BT709 95% Viewing Angle (H x V) 178 × 178 Color Depth 1.07 Billon Colors (10 bit (D)) Response Time Tr : 8ms / Tf :10ms Surface Treatment (Haze) 28 % Life Time (Min.) 50,000 Hrs Operation Hours (Hours / Days) 24 / 7 Portrait / Landscape Yes / Yes